<?php
//header('Access-Control-Allow-Origin: http://www.baidu.com'); //设置http://www.baidu.com允许跨域访问
//header('Access-Control-Allow-Headers: X-Requested-With,X_Requested_With'); //设置允许的跨域header

	date_default_timezone_set("Asia/chongqing");
	error_reporting(E_ERROR);
	header("Content-Type: text/html; charset=utf-8");

	$CONFIG = json_decode(preg_replace("/\/\*[\s\S]+?\*\//" , "" , file_get_contents("config.json")) , true);
	$action = $_GET['action'];

	switch ($action)
	{
		case 'config':
			$result = json_encode($CONFIG);
			break;

		/* 上传图片 */
		case 'uploadimage':
			/* 上传涂鸦 */
		case 'uploadscrawl':
			/* 上传视频 */
		case 'uploadvideo':
			/* 上传文件 */
		case 'uploadfile':
			$result = include("action_upload.php");
			break;

		/* 列出图片 */
		case 'listimage':
			$result = include("action_list.php");
			break;
		/* 列出文件 */
		case 'listfile':
			$result = include("action_list.php");
			break;

		/* 抓取远程文件 */
		case 'catchimage':
			$result = include("action_crawler.php");
			break;

		default:
			$result = json_encode(array(
				'state' => '请求地址出错',
			));
			break;
	}

	/* 输出结果 */
	if(isset($_GET["callback"]))
	{
		if(preg_match("/^[\w_]+$/" , $_GET["callback"]))
		{
			echo htmlspecialchars($_GET["callback"]) . '(' . $result . ')';
		}
		else
		{
			echo json_encode(array(
				'state' => 'callback参数不合法',
			));
		}
	}
	else
	{
		echo $result;
	}